Abstract: The invention relates to a bag of variable volume able to contain fluids and designed to be introduced into a container through the container's neck, said bag consisting of a pouch with one closed end and one open end, the open end being dimensionally stable over temperature ranges of from ?30 to 55° C., to a device incorporating said bag and to a process for filling it.

Abstract: Disclosed is a method for producing a dispensing device (1). The method includes mounting a valve (4) into a dispensing opening (7) of an internal reservoir (3) with a variable volume, sealingly attaching an attachment sleeve (22) made of thermoplastic polymer to the internal reservoir (3), disposing the internal reservoir (3) and the valve (4) inside an external container (5) made of thermoplastic polymer, placing the attachment sleeve (22) opposite to and at a distance from a mounting opening (16) of the external container (5), inserting through the mounting opening (16) a pressurized gas between the internal reservoir (3) and the external container (5), and closing off the mounting opening (16) with the attachment sleeve (22) and welding the attachment sleeve (22) and the external container (5) to one another.

Abstract: Device adapted to deliver fluids, in particular medicines, under pressure, comprising a receptacle 1 of variable volume in a form or shape of a pouch or flexible container of general cylindrical shape with exclusively longitudinal pleats 2 containing the fluid under pressure to be delivered and equipped with an actuator C permitting to open a valve 15a, 15b, to enable the aforementioned fluid to be delivered, the whole being located inside a receptacle 4 capable of resisting to an elevated internal pressure, the internal volume of this last receptacle comprised between its wall and the receptacle of variable volume being filled with a neutral gas under a pressure sufficient to exert on the receptacle of variable volume a pneumatic constraint sufficient to permit the delivery of the therein contained fluid when the above-said valve permitting the said delivery is operated by the aforementioned actuator C.

Abstract: The invention relates to a bag of variable volume able to contain fluids and designed to be introduced into a container through the container's neck, said bag consisting of a pouch with one closed end and one open end, the open end being dimensionally stable over temperature ranges of from ?30 to 55° C., to a device incorporating said bag and to a process for filling it.

Abstract: A method for producing a dispensing device (1) comprising the following steps: —mounting a valve (4) into a dispensing opening (7) of an internal reservoir (3) with a variable volume, —sealingly attaching an attachment sleeve (22) made of thermoplastic polymer to the internal reservoir (3), —disposing the internal reservoir (3) and the valve (4) inside an external container (5) made of thermoplastic polymer, —placing the attachment sleeve (22) opposite to and at a distance from a mounting opening (16) of the external container (5), —inserting through the mounting opening (16) a pressurized gas between the internal reservoir (3) and the external container (5), —closing off the mounting opening (16) with the attachment sleeve (22) and welding the attachment sleeve (22) and the external container (5) to one another.

Abstract: The invention relates to a bag of variable volume able to contain fluids and designed to be introduced into a container through the container's neck, said bag consisting of a pouch with one closed end and one open end, the open end being dimensionally stable over temperature ranges of from ?30 to 55° C., to a device incorporating said bag and to a process for filling it.